PI3B3861QE

PI3B3861
3.3V, 10-Bit, 2-Port, NanoSwitchTM
Features
Description
ÎÎNear-Zero propagation delay
Pericom Semiconductor’s PI3B3861 is a 10-bit, 3.3 volt, 2-port
ÎÎ5-ohm switches connect inputs to outputs
bus switch designed with a low On-Resistance (5-ohm) allowing
ÎÎFast Switching Speed: 4.5ns (max.)
inputs to be connected directly to outputs. The bus switch
ÎÎUltra Low Quiescent Power (0.1μA typical)
creates no additional propagational delay or additional ground
bounce noise. The switches are turned ON by the Bus Enable
àà Ideally suited for notebook applications
ÎÎPackaging (Pb-free & Green):
(BE) input signal.
àà 24-pin 150-mil wide plastic QSOP (Q)
Block Diagram
Pin Configuration
A0
SW
B0
A9
SW
B9
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
GND
SW
BE
A
B
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
Vcc
BE
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
BE
Truth Table(1)
Pin Description
Function
BE
A0–9
Pin Name
Description
Disconnect
H
Hi-Z
BE
Connect
L
B0–9
A0-9
Bus A
Bus Enable Input (Active LOW)
Note: H
= High Voltage Level
B0-9
Bus B
L
= Low Voltage Level
Hi-Z = High Impedance
GND
Ground
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VCC
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PS8148i
09/24/10
PI3B3861
3.3V, 10-Bit, 2-Port, NanoSwitchTM
Absolute Maximum Ratings
Parameter
Min.
Max.
Units
Storage Temperature
-65
150
o
C
Ambient Temperature with Power Applied
-40
85
o
C
Supply Voltage to Ground Potential
-0.5
4.6
V
DC Input Voltage
-0.5
4.6
V
DC Output Current
-
120
mA
Power Dissipation
-
0.5
W
Stress beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Parameters
Description
Test Conditions(1)
Min
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
-0.5
IIH
Input HIGH Current
IIL
Input LOW Current
IOZH
Typ (2)
Max
Units
V
0.8
V
VCC = Max., VIN = VCC
±1
μA
VCC = Max., VIN = GND
±1
μA
High Impedance Output Current 0 ≤ A, B ≤ VCC
±1
μA
VIK
Clamp Diode Voltage
-1.2
V
RON
Switch On Resistance
VCC = Min., IIN = –18 mA
(3)
VCC = Min., VIN = 0.0V, ION = 48mA
or 64mA
5
8
VCC = Min, VIN = 2.4V, ION = 15mA
10
17
Ω
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading.
3. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two
(A,B) pins.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(1)
Description
Test Conditions
Typ
Units
CIN
Input Capacitance
VIN = 0V
3.0
pF
COFF
A/B Capacitance, Switch Off
VIN = 0V
8.0
pF
CON
A/B Capacitance, Switch On
VIN = 0V
16.0
pF
Notes:
1. This parameter is determined by device characterization but is not production tested.
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PS8148i
09/24/10
PI3B3861
3.3V, 10-Bit, 2-Port, NanoSwitchTM
Power Supply Characteristics
Parameters
Description
Test Conditions(1)
Min
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
ΔICC
Supply Current
per Input @ TTL
HIGH
VCC = Max.
VIN = 3.0V(3)
Typ (2)
Max
Units
0.1
3.0
μA
750
μA
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (control input only); A and B pins do not contribute to ICC .
Switching Characteristics over Operating Range
Com.
Parameters
Description
tPLH
tPHL
Propagation Delay(2,3)
Ax to Bx, Bx to Ax
tPZH
tPZL
Bus Enable Time
BE to Ax or Bx
tPHZ
tPLZ
Bus Disable Time
BE to Ax or Bx
Min
Test Conditions(1)
Max
Units
0.25
CL = 50 pF
RL = 500Ω
1
4.5
1
4.5
ns
Notes:
1. See test circuit and wave forms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much smaller
than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus
switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load
on the driven side.
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a + 3.3V supply, IN may be
driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption.
Power-Supply Sequencing and Hot-Plug Information
Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to
input/output or control pins.
Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd.
All trademarks are property of their respective owners.
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PS8148i
09/24/10
PI3B3861
3.3V, 10-Bit, 2-Port, NanoSwitchTM
Test Circuits
Switch Position
6V
VCC
Open
Pulse
Generator
VOUT
VIN
500Ω
D.U.T
50pF
RT
CL
500Ω
Test
Switch
Disable LOW
6V
Enable LOW
6V
Disable HIGH
GND
Enable HIGH
GND
tPD
Open
Definitions:
CL = Load capacitance (includes jig and probe capacitance)
RT = Termination resistance (should be equal to ZOUT of the
pulse generator)
Enable and Disable Timing
Disable
Enable
3V
1.6V
Control
Input
Output
Normally
Low
1.5V
1.5V
0V
0V
tPHL
3V
0.3V
t PZH
Switch
GND
1.5V
tPLH
3V
t PZH
3V
1.5V
0V
t PLZ
Switch
Same Phase
Input Transisiton
1.5V
t PZL
Output
Normally
High
Propagation Delay
0.3V
Output
VOL
VOH
1.5V
1.5V
VOL
tPLH
VOH
tPHL
Opposite Phase
Input Transisiton
0V
3V
1.5V
0V
1. Input Control Enable = Low Input Control Disable = High
2. Pulse Generator for all pulses
Rate ≤1.0 MHz; ZOUT ≤50Ω; tF, tR≤2.5ns
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PS8148i
09/24/10
PI3B3861
3.3V, 10-Bit, 2-Port, NanoSwitchTM
Packaging Mechanical: 24-pin QSOP (Q)
DOCUMENT CONTROL NO.
PD - 1203
24
.008
0.20
MIN.
.150
.157
3.81
3.99
.016
.035
0.41
0.89
Detail A
1
0˚-6˚
.041
1.04
REF
8.56
8.74
.033
0.84
.053
.069
.015 x 45˚
0.38
1.35
1.75
Detail A
1
SEATING
PLANE
.025
typical
0.635
DATE: 10/22/07
.008
.013
0.20
0.33
Guage Plane
.010
0.254
.337
.344
REVISION: H
.004 0.101
.010 0.254
.008 0.203
.012 0.305
.007
.010
0.178
0.254
.228
.244
5.79
6.20
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
Note:
1) Controlling dimensions in millimeters
2) Ref: JEDEC MO-137B/AE
3) Dimensions do not include mold flash, protrusions or gate burrs
DESCRIPTION: 24-Pin, 150-Mil Wide, QSOP
PACKAGE CODE: Q
07-0475
Ordering Information
Ordering Code
Package Code
Package Type
PI3B3861QE
Q
Pb-free & Green, 24-pin QSOP
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation • 1-800-435-2336
All trademarks are property of their respective owners.
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PS8148i
09/24/10